Controlling system



June 17, 1930. c. F. LINKENHELD CONTROLLING SYSTEM 4 2 Sheets-Sheet 1 Filed Dec. 29, 1924 June 17, 1930. c. F. LINKENHELD CONTROLLING SYSTEM Filed Dec. 29, 1924 2 Sheets-Sheet 2 fizz/e235? a CZarezzaeZZWM Patented June 1?, i336 CLARENCE FRANGIfi LTNKENHELD, OF CHICAGO, ILLINOIS, ASSEGNOR TO WESTERII v ELECTRIC COMPANY, INCOR FORATED, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK CONTROLLING SYSTEM Application filed December 29, 1924. Serial No. 758,571.

This invention relates to a controlling system, and more particularly to a system for controlling the operation of a coiling machine. v

The object of the invention is to provide improved controlling apparatus.

I One form of the invention is embodied in apparatus for coiling rod wherein the circuit of an electric motor driving the coming element is opened when the rod has been coiled and contemporaneously therewith a circuit is momentarily closed through a solenoid, the restoration of which is delayed so that the motor may coast for a definite period of time before the solenoid reaches its normal position to close a circuit for reapplying the current to the motor in a reverse direction, a switch operating to again remove the current from the motor as soon as it starts reversing. A solenoid control prevents the actuation, before the coiling element stops, of a pneumatically operated stripper for removing the coiled rod.

Other features of the invention will become apparent as the following detailed description progresses, reference being had to the accompanying drawings, wherein Fig. 1 is a central section through a coil ing machine controlled by means embodying the invention;

Fig. 2 is afragmentary section through the control apparatus;

Fig. 3 is a section taken on line 33 of Fig. 2, and

Fig. 4 shows a circuit for controlling the operation of the apparatus shown in Figs. 1, 2, and 3. 9

Referring to Fig. 1, 21 is the base of a coiling machine upon which is mounted a three-phase motor 22 adapted to drive a pinion 24 meshing with a bevel gear 26, the bevel gear 26 being secured to a sleeve 27 which is journaled in the base 21 and has rigidly secured to it a disk 29. Projecting upwardly from the disk 29 are pins 31 and 32 adapted to coil rod guided into the space between the pins by a movable tube 34. The pins 31 and 32 pass through apertures 35 in a stripping plate 36 secured to a rod 38 which is slidablyjournaled in the sleeve 27 and is connected by a coupling 39 to a piston rod 40 fixed to a piston 41 disposed within a pneumatic cylinder 42. The cylinder 42 is connected by pipes 45 and 46 to a supply (not shown) of fluid under pressure so that a fluid, such as air. may be admitted to the cylinder to reciprocate the piston 41. This permits the stripping plate 36 to be moved upwardly in such manner that rod coiled upon the pins 32 will be stripped therefrom and raised to the level of a floor 43. The flow of fluid under pressure through the pipe 46 is controlled by any suitable means (not shown), the flow of fluid under pressure through the pipe 45 being controlled by a valve 48 (Figs. 2 and 3).

The valve 48 is conveniently disposed with respect to the coiling machine and comprises a valve stem 50 which has secured thereto a disk 52 and a bevel gear 53. The bevel gear- 53 meshes with a segmental bevel gear 54' journaled upon a stud shaft 55, a lever 57 being formed integrally with the segmental gear 54 so that it may be oscillated to open and close the valve 48. Pivotally secured to the disk 52 is a bar 60 having a slot 61 which accommodates a pin 63 projecting from a bracket 64, the bracket 64 being mounted in a housing 65 in which the valve 48 is also mounted. lVhen the valve 48 is closed, the bar 60 will occupy the position wherein it is shown in full lines in Fig. 3 and when the handle 57 is moved in a clockwise direction (Fig. 2) to open the valve, the bar 60 will be brought into the position wherein it is shown in dotted lines in Fig. 3. Mounted in the housing 65 is a solenoid 67 having a core 69 which is movable into the path of the bar 60 to prevent the valve 48 from being opened when the disk 29 and the pins 31 and 32 are being rotated. Secured to the upper end of the core 69 is a bent pin 71 which projects from the hous' ing 65 when the core is in the path of the bar 60. This is to apprise the operator that the valve 48 is locked in its closed position.

Referring to Fig. 4, the motor 22 is connected to a source (not shown) of electrical mains 72, 73, and 74, switches and 90, the solenoid 67, a solenoid 100, and electrical switches 110 and 120.

The switch 80 comprises a winding 81,

V 5 normally open contacts 82, 83, and 84 and a normally closed contact 85 Theconstruction "oi the switch is substantially iden. tical with the construction of the switch ,80 and it comprises a winding 91, normally contacts '92, 93", and 94, and anormally c 'ed"contact' 95".

The solenoid comprises a movable core 101 carrying a contacting member 102' whichnormally engages a contact 103, but which 15 is disengaged from the contact 103 when the winding. of the solenoid isenerg-izedt The restoration of the contacting; member 102- to its normal position is delayed-by a dash pot 105 for a purpose'whichwillpresently U I I. I

he sw1tch=110 s manuallyoperable and is conveniently placed with respect to Y the coiling, machine. It comprises-a contacting I: 1,135 many one of aplurality' ofcontaets112, 113,

and 1 i I The switch 1203s disposed in a: housing I and-a spring, 129 connecting. the ends of the The sheave 126' is constrained to a ro i 7 tate with the armature of the motor 22 and 1 the-amatmis-rotating intheproper' a direction to cause the pins 31 .an'd 32 to coil- 9 rod.- delivered to them, the sheave 126 will rdate' the sheave 125. through; the belt 128 I the'contacti'ng member; 123' engages the contacts 121 and122. Thecontactingmember 123 then prevents further-rotation oi atlas sheave 125 whereupon the belt 128 slips the sheave 126. When the motor=22i s reversed the coatacti mmember 123 is mediatelypdisengaged mm the contacts- 121 and 122 and the motor 22 is brought to astull stop in a manner hereinafter de scribed.

c The mains 72,73, 74 are eonnected to the; contacts: 82', 83, and 84,: respectively,

and the conductors 130. 131,- (1,132,

respectively, to the, contacts 93, 92, and 94, rwectlvely; V The contacts 94,- 93-, and 92 connected by conductors 135, 136, and

137, respectively, to the three-terminals of 7 motor 22,-theconductors 135, 136i, and I 137; being connected ,to theicontacts 84, 83,

' and 82, respectively; The contact 85 is connected to the contacting member 102 and-to, one term-inalof thewinding 91, which winding has its othertermi-nal' connected; to the contact 122, to; one terminal of the wi-nding 1y. The contact 103 is connected to 7 member 111.

17111 movable, into engagement with of the solenoid 100, and to one terminal of the winding of the solenoid 67. The other terminals of the windin s of the solenoids 67 and 100 are connecte to the contacting member 111 and the contact 113, res ectivecontact 114.v The contact 95 is connected to the contact 112 and to one terminal of the winding 81, the other terminal of which is connected to the main 74' andto the contact The main 72 is connected'to the contacting In the operation ofthe apparatus the V contacting member 111 is manually brought into engagement with the contact 112 to close acircuit which may be traced asfollows: From the 1nain72, through them-' taoting member 111, the contact-112, thecon." tact 95, and through the winding81 to tho" main74. This energizes the winding; 8].and

causes it to close the-contacts 82,83, and- 84" and to openthe contact '85-, whereupon the three-phase current is applied; to the: motor 22 as follows: From the main: 712-, through the contact 82, and through the:

conductor- 137 toone terminal of the motor;-

fromthe main 73-, through thecontact:

and through'the conductor: 136 to a second terminal of the motor; from; the 11119118174, through the contact: 84, and through thecomductor'135'to-a thirditermina'l oi the mint; The motor. 22' is then driven in its forward direction; and causes the: pins 31' and. 32 to coil rod supplied to-themthrough the tube (As the motor22 commences-to revolve: the contacting member 123 engages the con:-

tacts 121 and 122 to close a circuit whiel'r:

may be traced as follows: Fromthe main. 72,,through the winding of the solenoid 67, 'throughethe contact l-22,"the contacting member 123, and through the contact- 121, to thefmai'n 74. wWhen-thawindiairg,0t the:

solenoid: 67 is so energizedthe core 69 is brought'into: the path ofthe bar 60 to prevent the operator from opening, the valve 48;." This 1s advantageons in that if partially or completely coiled rod were bar to the level-of the floor 43 before the stripping plate 36 has ceased to revolve, the rod would be forcibly thrown from the plate constituting a'sourceof danger. After-a length of rod has been completely coilcd,; the contacting member 111' is'brought intoengagement Withfthe contact 114, it being,-

understood that when the contactingimam her-111 is disengaged from the contact 112,

the contacts 82, 83, and 84 open and the contact 85 closes to disconnect the motor 22 from the mains 72, 7 3, and 74. Thecontact" 113 is momentarily engaged by the contaete ing member 111 as it passes to the contact v 114 so that current flows from themain72' through the contacting member 111, the contac 113, the winding of the solenoid 100,1' theconta-ct 122, the contacting member 123,.

and through the contact 121 to the main '74. The energization of solenoid 100 during this momentary flow of current disengages the contacting member 102 from the contact 103 and such member is prevented by the dash pot 105 from again engaging this contact until a predetermined period of time has elapsed] This is to permit the motor 22 to coast before the current is re-applied to the motor in a reverse direction, for if the current were immediately reversed, it would cause injury to the motor and to the coiling machine. When the contacting member 102 again engages the contact 103 upon the reopening of the circuit through the solenoid 100 and the functioning of the dash pot 105, current will flow through a circuit which may be traced as follows: from the main 72, through the contact member 111, the contact 11%,the contact 103, the contacting member 102, the contact 85, the winding 91, the contact 122, the contacting member 123, and through the contact 121 to the main 74. The winding 91 is then energized to close the contacts 92, 93, and 94, and to open the contact 95. The three-phase current is then applied to the motor 22 as follows: through the main 72, the conductor 130, the contact 93 and the conductor 136 to the second terminal of the motor; through the main 7 3, the conductor 131, the contact 92 and the conductor 137 to the first terminal of the motor; through the main 74L, the conductor 132, the contact 94, and the conductor 135 to the third terminal of the motor. The

' current thus applied to the mot-or 22 first applies a braking effort to the armature thereof and then tends to reverse the motor. When the motor 22 actually reverses, the contacting member 123 is disengaged fron the contacts 121 and 122 and the winding of the solenoid 67 and the Winding 91 are de-energized. lVhen the winding 91 is deenergized the contacts 92, 93, and 94: open and the contact 95 closes to bring the motor 22 to a full stop. l/Vhen the Winding of the solenoid 67 is deenergized, the core 69 is withdrawn from the path of the bar v and the valve 18 may be opened to actuate contacts 82, 83, and 84: can be retained in closed position only so long as contacts 95 are closed to maintain the circuit through Winding 81, and contacts 95 can remain closed only so long-as contacts 92, 93, and 94, are opened.

lVhat is claimed is:

1. In a system for controlling a coiling mechanism operatively connected with an electric motor, means for applying an electric current to the motor to cause he rot-ation thereof in one direction, means for disconnecting the supply of current from the motor, and means operating a predetermined period of time thereafter for reapplying the current to the motor to produce a braking torque sufficient to arrest the rotation of the motor.

2. In a system for controlling a ceiling mechanism operatively connected with an electric motor, means for applying an elec tric current to the motor to cause the rotation thereof in one direction, means for disconnecting the supply of current from the motor, means operating a predetermined period of time thereafter for re-applying the current to the motor to produce a torque in a reverse direction, and means for disconnect ing the last applied current when the initial rotation of the motor has been overcome.

3. In a system for controlling a coiling mechanism operatively connected with an electric motor, means for applying an electric current-to the motor to cause the rotation thereof in one direction, means for disconnecting the supply of current from the,

motor, and means controlled by the electric current for re-applying the electric current to the motor to cause the motor to experience a braking torque sufiicient to arrest the rotation thereof.

4. Ina system for controlling a coiling mechanism operatively connected with an electric motor, means for applying an electric current to the motor to cause the rotation thereof in one direction, means for disconnecting the supply of current from the motor, means controlled by theelectric current for re-applying the electric current to the motor to cause the motor to experience a torque in a reverse direction and arrest the rotation thereof, and means controlled by the motor for disconnecting the second men tioned supply of current from the motor.

5. In a system for controlling a coiling mechanism including an associated coil stripping means operatively connect-ed with an electric motor, means for applying current to the motor to cause the rotation thereof in one direction, means for disconnecting the supply of current from the motor, means for re-applying the current to the motor to produce a braking torque, neans for actuating the stripping means, and means controlled by the electric current for preventing the actuation of the stripping means while the coiling mechanism is operated.

6. The combination with means for coiling an element, of an electric motor for driv- Qingthe coiling means, means for applying a'magnetic field in one direction to cause themotor to rotate in a predetermined direcrection.

tion, means fordiscontinuing the magnetic field of the motor, means for re-a pplying the magnetic field of'the motor in a reverse direction when a predetermined period of time has elapsed after the last mentioned means has been actuated and means for disconnecting the supply of current to the motor when the motor starts to rotate in the reverse di- 7. In a control system for a coiling mechanism having a coilstrlpplng-means associated therewith, driving means connected to the coiling. mechanism, means for rendering the driving means inoperative, means for applying a braking torque to the coiling I arresting the movement of the driving memoer and of the coiling mechanism, and means preventing operation of the stripping means while the coiling mechanism is in motion.

9. In a control system for a rotary coiling mechanism having a coil stripping means associated therewith, a drivingmember connected to the coiling mechanism-to actuate the same, means for actuating the driving member, means for rendering said last mentioned means moperative, means for arresting the movement of the driving member and of the coiling mechanism, and means 1 for preventing operation of the stripping means while the coiling mechanism is rotatmg.

stripping mechanism, means for operating the coiling mechanism to coil an element,

and means controlledby the operating means .forvthe coiling mechanism to prevent .the operation of the stripping mechanism while the coiling mechanism is operating.

11. In a control system fora rotary coil- 10. In a control system for a eoilingmech-. an'ism having av coil stripping means asso: 4 ciated therewith, means for operating the anism having associated therewith means for elevating the coiled material to permit it to be removed from the coiling mechanism, a motor connected to the coiling mechanism to drive the same, means for controllin the energizationof the motor, means for bra ing the motor to thereby decelerate the coiling mechanism, and means normally "operative to lock the elevating means in inoperati position, said locking means being rendere inoperative upon stoppin of the motor. 13. In a control system I01 a coiling mechanism having associated therewith means for elevating the coiled material to permit it to be removed from the coiling mechanism, a motor-connected to the coiling mechanism to-drive the same, means for controlling the energization of the motor, braking means tending to reverse the direction of rotation of the motor and operative to decelerate the coiling mechanism, and a locking member adapted to prevent operation of the elevati means,said locking member bei arrangiid to be moved into operative positionby the closing of the motor circuit and to be moved to inoperative position after said braking means becomes operative.

In witness whereof, I' hereunto subscribe. my name this 19thday of December, A. D;

. cumlc: FRANCIS 'LINKENHELD.

ing mechanism having associatedtherewith means for elevating the coiled material to permit it to 'be removed from the coiling mechanism, a motor connected to the coiling I mechanism to drive the same, means for j. energizing"andde energizing, the motor,

means for applying a. braking torque to the motor to. thereby decelerate the'coiling mechanism, and means operative during rotation of the motor .toprevent the operation 'oflthe stripping means .while the coiling 1 mecha- Y nism is rotating. 1

12., Ina control system mech- 

